import { logout, getInfo } from '@/api/user'
import { getToken, setToken, removeToken } from '@/utils/auth'
import router, { resetRouter } from '@/router'
import store from '@/store'

const state = {
  token: getToken(),
  name: '',
  avatar: '',
  introduction: '',
  roles: []
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_ROLES: (state, role) => {
    state.role = role
  }
}

const actions = {
  // user login
  login({ commit }, userInfo) {
    // eslint-disable-next-line no-async-promise-executor
    return new Promise((resolve, reject) => {
      try {
        resolve()
      } catch (error) {
        reject(error)
      }
    })
  },

  // get user info
  getInfo({ commit, state }) {
    return new Promise((resolve, reject) => {
      getInfo().then(response => {
        console.log(-1)
        const data = response
        console.log(data)
        if (!data) {
          reject('Verification failed, please Login again.')
        }

        commit('SET_TOKEN', sessionStorage.getItem('token'))
        console.log(data)

        const { uid, role, name } = data;
        console.log(role)

        // roles must be a non-empty array
        if (role === undefined) {
          reject('getInfo: roles must be a non-null array!')
        }
        sessionStorage.setItem('uid', uid)
        sessionStorage.setItem('role', role)
        sessionStorage.setItem('name', name)
        if(role === 0)
          commit('SET_ROLES', 'admin')
        commit('SET_NAME', name)
        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout
  logout({ commit, state, dispatch }) {
    return new Promise((resolve, reject) => {
      logout(state.token).then(() => {
        commit('SET_TOKEN', '')
        commit('SET_ROLES', [])
        removeToken()
        resetRouter()

        // reset visited views and cached views
        // to fixed https://gitee.com/xxi13552467509/traffic-forecastfront-end/issues/2485
        dispatch('tagsView/delAllViews', null, { root: true })

        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // remove token
  resetToken({ commit }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve()
    })
  },

  // dynamically modify permissions
  async changeRoles({ commit, dispatch }, role) {
    const token = role + '-token'

    commit('SET_TOKEN', token)
    setToken(token)

    const { roles } = await dispatch('getInfo')

    resetRouter()

    // generate accessible routes map based on roles
    const accessRoutes = await dispatch('permission/generateRoutes', roles, { root: true })
    // dynamically add accessible routes
    router.addRoutes(accessRoutes)

    // reset visited views and cached views
    dispatch('tagsView/delAllViews', null, { root: true })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
